Olmsted County Fair won't cancel Prof concert after backlash The fair board held a special meeting this week in response to the criticism. Author: The Olmsted County Fair board won't be canceling a planned concert featuring Minneapolis hip-hop artist Prof, which is scheduled for the fairgrounds next month. The Olmsted County Fair Board on Thursday addressed the July 23 concert in a news release after receiving backlash over the headliner. Prof was dropped by Rhymesayers last year, with the record label citing misogynistic tweets that some say perpetuate rape culture. Controversy regarding the scheduled Prof concert grew last week, with some calling on the show to be canceled and criticizing the fair board for booking the artist, the Rochester Post Bulletin reported.